Class: XlsFunction::Evaluators::Functions::Sign

Inherits:
XlsFunction::Evaluators::FunctionEvaluator show all
Defined in:
lib/xls_function/evaluators/functions/sign.rb

Instance Method Summary collapse

Methods inherited from XlsFunction::Evaluators::FunctionEvaluator

#arg_list, #before_eval, #convert_to, create, #detect_error, #error?, #error_message, #eval_arglist, #eval_or_map_eval, #evaluate, #evaluate_or_self, #initialize, #map_eval, to_h, #to_proc, to_proc, translated_description, #variant_context

Methods included from ClassDictionary

included

Methods included from ErrorDetector

#class_info, #class_name, included, #rescue_with

Methods included from ArgumentsDefinable

included

Methods included from Evaluable

#evaluate, included

Constructor Details

This class inherits a constructor from XlsFunction::Evaluators::FunctionEvaluator

Instance Method Details

#eval ⇒ Object 



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# File 'lib/xls_function/evaluators/functions/sign.rb', line 9

def eval
  if number.positive?
    1
  elsif number.negative?
    -1
  else
    0
  end
end